It is a roughly 50 cm tall plant growing in clumps. Its triangular-shaped leaves and hollow stems are glabrous. Its inflorescences have a very characteristic shape, producing three-lobed yellow flowers about 1.5 cm in diameter. The fruits are spherical. Although it is not a floating plant, its seeds are carried away by currents.
Is a species of aquatic flowering plant which is native to Southeast Asia.
National Botanical Garden of Belgium.